Aotu World: The Strongest Darkness

From the start, he was bought by Lei Yi of the Lei family to serve as his personal bodyguard, then sent to protect Lei Shi at the Clash of the Realms tournament. Along the way, he regained his memories and discovered that he was currently the only angel belonging to the God of Destruction, Elaine. He doesn't know who is right, but he knows this is the right path: kill the Seven Divine Messengers.